feat: boot TYPO3 13 with site configs and the theme build

- Site configs for the seven live sites from EP/website, Development
  base variants on *-ep13.ddev.site (DDEV additional_hostnames)
- Webpack Encore build moved to the root, output in
  packages/ep_theme/Resources/Public, public path /_assets/<hash>
- Search UI removed from the kept layouts and partials, as the static
  export already does
- Daytrip room selection and the contingent chain removed (contingent
  import is not ported; no daytrip product has current contingents)
- f:uri.action is final in v13: Uri\AjaxViewHelper invokes it
- Remaining QueryBuilder::execute() and array logicalAnd() calls,
  addRootLineFields, TSFE getData, legacy typo3conf/ext template path
- Rector skips the plugin-to-CType rules; plugins stay list_type

Co-Authored-By: Claude Opus 5.5 <[email protected]>

config/system/settings.php

@@ -35,10 +35,36 @@ return [
             'loginLogo' => '',
             'loginLogoAlt' => '',
         ],
+        'ep_products' => [
+            'bpnConnectApiBaseUrl' => '',
+            'bpnConnectApiKey' => '',
+            'bpnConnectApiMaxDuration' => '15',
+            'bpnConnectApiTimeout' => '5',
+            'cmsApiKey' => '',
+            'contentFeedEnabled' => '1',
+            'contentFeedExcludedPages' => '634',
+            'contentFeedLanguages' => '0',
+            'contentFeedNewsDetailPages' => 'ep-reisen:1392',
+            'contentFeedSites' => 'ep-reisen,ser,ski-boarderweek,ski-wochenenden,snowzone',
+            'myEpApiBaseUrl' => '',
+            'myEpApiClientId' => '',
+            'myEpApiClientSecret' => '',
+            'myEpApiMaxDuration' => '15',
+            'myEpApiTimeout' => '5',
+            'myEpApiUrlAuthorize' => '',
+            'myEpApiUrlToken' => '',
+            'myEpStagingUrl' => 'https://my.ep-reisen.net',
+            'myEpUrl' => 'https://my.ep-reisen.de',
+            'searchPageUid' => '0',
+        ],
         'extensionmanager' => [
             'automaticInstallation' => '1',
             'offlineMode' => '0',
         ],
+        'redirects' => [
+            'showCheckIntegrityInfoInReports' => '1',
+            'showCheckIntegrityInfoInReportsSeconds' => '86400',
+        ],
     ],
     'FE' => [
         'cacheHash' => [